Maier, A. [P:(DE-HGF)0] ; Ernst, J.-P. [P:(DE-HGF)0] ; Müller, S. [P:(DE-HGF)0] ; Gross, D. [P:(DE-HGF)0] ; Zepf, F. D. [P:(DE-HGF)0] ; Herpertz-Dahlmann, B. [P:(DE-HGF)0] ; Hagenah, U. [P:(DE-HGF)0]